Anyone Tried these COP's???
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Senior Member
Joined: Jul 2007
Posts: 475
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Anyone Tried these COP's???
Saw these and wondered if anyone had any experience with these? Only about $100 more than the motorcraft one's on ebay and if they last longer I'd be willing to fork out the extra $100. Maybe they work better also? Anyone use them?
http://rpmoutlet.com/musv8wgf.htm
http://rpmoutlet.com/musv8wgf.htm
Technical Article Contributor
Joined: Oct 2005
Posts: 25,641
Likes: 19
From: MI
If you were supercharged and had a use for more fire, you could warrent the upgrade
My Motorcraft COPs lasted 165,000 miles before I changed them.
Where can you get Motorcraft COP's that cheap ?
My Motorcraft COPs lasted 165,000 miles before I changed them.
Where can you get Motorcraft COP's that cheap ?
Senior Member
Joined: Jul 2004
Posts: 6,200
Likes: 39
From: Easton, Pa.
Commentary and experience:
Any coil can fail from OEM to aftermarket, new or used.
When you get coils aftermarket you take a chance on needing warrenty back up if a new coil is proven to be defective, same as OEM..
Many jump on this as a means of condemnation when again any coil can fail at anytime, same as any other part.
Same goes for spark plugs.
Coils experience the greatest stress loading at times of decelleration and back onto light throttle when the air-fuel mix is the leanest and hardest to fire.
A coil with a bit more voltge reserve does help with this and may tend to support better fuel mileage.
Picking out coils that fail and yeld no code is done with a dealer stress test.
There is no other way except substitution.
This consept is hard for some people to accept but it's there and does cause difficuit problems for some to get hold, of when it happens.
This type of fault plays hell with trans shifting such that some will want to blame it on trans shudder when it is not.
Get your coils and see what they do, otherwise you won't know.
I did 8 new coils and had 2 failures within days but I would not come on this board and begin condemnation proccedings on the vendor make, just because of the experience.
Taking chances sometime is the only way to learn. That's why I am taking the time to reply with this information.
Take your truck to a dealer and you get out of having to make sure all coils and plugs are good but you pay for that assurence.
Which way you go is your choice.
Good luck. A lot of parts come from China now and is of poor quality and copies of the US OEMs.
Any coil can fail from OEM to aftermarket, new or used.
When you get coils aftermarket you take a chance on needing warrenty back up if a new coil is proven to be defective, same as OEM..
Many jump on this as a means of condemnation when again any coil can fail at anytime, same as any other part.
Same goes for spark plugs.
Coils experience the greatest stress loading at times of decelleration and back onto light throttle when the air-fuel mix is the leanest and hardest to fire.
A coil with a bit more voltge reserve does help with this and may tend to support better fuel mileage.
Picking out coils that fail and yeld no code is done with a dealer stress test.
There is no other way except substitution.
This consept is hard for some people to accept but it's there and does cause difficuit problems for some to get hold, of when it happens.
This type of fault plays hell with trans shifting such that some will want to blame it on trans shudder when it is not.
Get your coils and see what they do, otherwise you won't know.
I did 8 new coils and had 2 failures within days but I would not come on this board and begin condemnation proccedings on the vendor make, just because of the experience.
Taking chances sometime is the only way to learn. That's why I am taking the time to reply with this information.
Take your truck to a dealer and you get out of having to make sure all coils and plugs are good but you pay for that assurence.
Which way you go is your choice.
Good luck. A lot of parts come from China now and is of poor quality and copies of the US OEMs.
